The produced water (PW) treatment market in Southeast Asia is currently facing challenges such as high cost in intensive technologies, lack of knowledge on produced water management and public acceptance towards treatment technologies. However, increase in oil production, ageing oilfields, stringent effluent discharge regulations and water conservation strategies will bring demand to the market. With the increasing volume of PW being formed in Southeast Asia, companies that provide services and equipment that are cost effective, innovative and reliable will lead the market. In the near future, produced water will focus on recycling and reuse as well as reinjection as treated produced water.